Search a number
-
+
311634113 = 744519159
BaseRepresentation
bin10010100100110…
…010100011000001
3210201101122122012
4102210302203001
51114234242423
650531222305
710502563160
oct2244624301
9721348565
10311634113
1114aa0035a
1288447995
134c7423ab
142d5613d7
151c55b078
hex129328c1

311634113 has 4 divisors (see below), whose sum is σ = 356153280. Its totient is φ = 267114948.

The previous prime is 311634101. The next prime is 311634121. The reversal of 311634113 is 311436113.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 311436113 = 1631910651.

It is a cyclic number.

It is not a de Polignac number, because 311634113 - 24 = 311634097 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (311634133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22259573 + ... + 22259586.

It is an arithmetic number, because the mean of its divisors is an integer number (89038320).

Almost surely, 2311634113 is an apocalyptic number.

It is an amenable number.

311634113 is a deficient number, since it is larger than the sum of its proper divisors (44519167).

311634113 is an equidigital number, since it uses as much as digits as its factorization.

311634113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44519166.

The product of its digits is 648, while the sum is 23.

The square root of 311634113 is about 17653.1615582025. The cubic root of 311634113 is about 677.9770566515.

The spelling of 311634113 in words is "three hundred eleven million, six hundred thirty-four thousand, one hundred thirteen".

Divisors: 1 7 44519159 311634113